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Updated: May 29, 2026

Virtual Agent for Real-Time Motivational Interviewing by Integrating Adaptive Nonverbal Behavior and Language Models
Published on: December 23, 2025
Motivational interviewing and shared decision making in primary care.
Ulrike Sonntag1, Julia Wiesner, Sandra Fahrenkrog
1Institute for General Practice and Family Medicine, Charité Universitätsmedizin, Berlin, Germany. Ulrike.sonntag@charite.de
General practitioners rarely use shared decision-making or motivational interviewing with obese patients. Training is needed to improve these essential obesity counseling strategies.
Area of Science:
- Primary Care Medicine
- Obesity Management
- Behavioral Science
Background:
- Obesity management requires effective patient-centered communication.
- Shared decision-making (SDM) and motivational interviewing (MI) are evidence-based strategies for lifestyle counseling.
Purpose of the Study:
- To evaluate general practitioners' (GPs) readiness for SDM with obese patients.
- To assess the integration of MI techniques in primary care obesity encounters.
Main Methods:
- Audio recordings of 58 primary care encounters with overweight/obese patients.
- Behavior Change Counseling Index (BECCI) for MI assessment.
- Observing Patient Involvement Scale (OPTION) for SDM assessment.
Main Results:
- Low mean scores for both SDM (OPTION=0.71) and MI (BECCI=1.65) were observed.
- MI use was higher for patients with BMI > 30 kg/m².
- Female GPs demonstrated higher SDM scores than male GPs.
Conclusions:
- SDM and MI are underutilized in German primary care obesity consultations.
- GPs require enhanced training in SDM and MI for effective obesity care.
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